87215480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{523}}^1$

素因数の和:924

約数の個数: 64

約数和(自身を含む): 215049600

約数和(自身を除く): 127834120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 379, 440, 523, 758, 1046, 1516, 1895, 2092, 2615, 3032, 3790, 4169, 4184, 5230, 5753, 7580, 8338, 10460, 11506, 15160, 16676, 20845, 20920, 23012, 28765, 33352, 41690, 46024, 57530, 83380, 115060, 166760, 198217, 230120, 396434, 792868, 991085, 1585736, 1982170, 2180387, 3964340, 4360774, 7928680, 8721548, 10901935, 17443096, 21803870, 43607740, 87215480]

約数ペア:

[(1, 87215480), (2, 43607740), (4, 21803870), (5, 17443096), (8, 10901935), (10, 8721548), (11, 7928680), (20, 4360774), (22, 3964340), (40, 2180387), (44, 1982170), (55, 1585736), (88, 991085), (110, 792868), (220, 396434), (379, 230120), (440, 198217), (523, 166760), (758, 115060), (1046, 83380), (1516, 57530), (1895, 46024), (2092, 41690), (2615, 33352), (3032, 28765), (3790, 23012), (4169, 20920), (4184, 20845), (5230, 16676), (5753, 15160), (7580, 11506), (8338, 10460)]